Dumfries and Galloway · Scotland

Window & door mastic in Kelton, Dumfries and Galloway

Mastic around window and door frames, sills and patio doors for homes and businesses in Kelton and across Dumfries and Galloway. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Water coming in at the bottom corners of a door
  • White mastic on grey or black frames
  • Draughty joints inside around the window

Book window mastic in Kelton

Window mastic in Kelton, done properly

The new joint doesn’t have to be white. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. Common call-outs are for cold air getting in at the frame edge and hard, cracked sealant around windows, on composite doors, window sills and aluminium frames.

Mastic can only go onto a dry joint, so outside work in Kelton depends on the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.

Big or small, you get the same 12-month guarantee.

Location
Kelton (DG1)
Region
Dumfries and Galloway
Cover
12 months on all our work
Price
Quoted before any work starts
Email
info@mrmastic.co.uk
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Should I try it myself first?

If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

The process

There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes most of a day for a typical house, less for a few frames, including the tidy-up. Around Kelton, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.

  1. First, we confirm safe access to each frame.
  2. All the failed sealant is cut away, along with any loose debris.
  3. Frame and wall are cleaned and must be dry before sealing.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. The joint is shaped to shed water and the area tidied.

Before we arrive

  • Mention if the joints have been sealed before
  • Move anything stored near the joints
  • Plan for the work area to be out of bounds to pets and children

Getting a quote

If you’re in Kelton and need window mastic, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.

Get a quick quote

Related advice

How to look after the new joints

Looking after new joints is easy:

  • Don’t paint over the silicone
  • Repaint timber before it’s bare
  • Wash the frames with mild soapy water
  • Keep jet washers away from the mastic

Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.

A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.

What sealant work can’t fix

We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:

  • Faulty window hardware
  • Damp coming through the wall itself rather than the frame joint
  • A door that needs adjusting, rehanging or new seals

If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.

Where we work in Kelton

  • Window sills
  • Composite doors
  • uPVC windows
  • Aluminium frames
  • Patio & French doors
  • Timber windows & doors

When to call us in Kelton

Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.

It’s worth asking for a quote if you see:

  • Mastic that’s falling out in pieces
  • Cracked or shrunken mastic around the frame
  • Water coming in at the bottom corners of a door
  • Gaps where the sill meets the wall

For landlords with property near Dumfries station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

What your quote should include

  • Whether VAT is included
  • Which colour the sealant will be
  • Whether all the old sealant comes out first
  • What happens if the job turns out different

How to choose a mastic man

Your questions about window mastic in Kelton

I let a flat near Dumfries station. Can you help?

Yes. We work for landlords and agents as well as homeowners. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.

Will you come out to Kelton?

Yes, Kelton is covered. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.

When is the sealant fully cured?

Different products cure at different speeds, so please follow the time we give you.

Where are you based?

Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Do I need to be at home?

Access is agreed with you when the job is booked. Indoors, that normally means someone at home.

Do the sealants smell?

It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.

How do I get a quote for window mastic in Kelton?

Size, access and the old material all affect the cost. Ask us for a quote.

Can you quote for more than one area?

Yes. Just list everything you need and we will quote it together.

How the job changes by surface

Composite doors

Front doors take the weather head on. We pay most attention there.

Patio & French doors

Heavy door frames can move more than windows. A flexible sealant copes with that.

Frames and glazing around Kelton

Kelton is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.

In and around Kelton, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.

Kelton is about 3 miles south of Dumfries, in Dumfries and Galloway. Every kind of property in Kelton is covered for window mastic. The work is guaranteed for a year. 138 places in Dumfries and Galloway are on our list, large and small. We also work in Glasgow, about 64 miles from Kelton.

Postcode districts we cover here for window mastic: DG1. That includes homes and businesses on Glencaple Road and Carlin Road and the roads around them. If you’re just outside Kelton, we cover Glencaple (1 mile south), Loaningfoot (2 miles north), Bankend (3 miles south-east), Racks (3 miles north-east) and Greenlea (4 miles north-east). Further out, we also cover Dumfries (3 miles north), Annan (13 miles east), Lockerbie (11 miles north-east), Dalbeattie (11 miles south-west), Castle Douglas (15 miles west) and Heathhall (5 miles north).

Landmarks near Kelton

The nearest railway station is Dumfries station, about 3.6 miles north. Other landmarks nearby include Crichton Royal Hospital (2.3 miles north) and Crichton Royal Museum (2.1 miles north). Open spaces near Kelton include WWT Caerlaverock and Lochaber Loch.

Map of Kelton © OpenStreetMap contributors

Why deal with it now?

Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In an older home around Kelton, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.

Why Kelton customers choose us

  • More than 20 years in sealant work
  • Homes, businesses and hotels
  • Colour agreed with you before work begins
  • Arbo and Everbuild products

Take a look at our cost guide and what customers say.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job